As I have posted elsewhere, the Logix is part of LGs clearing of its last stock. Expect the inferior CS4995 video chip (something they won`t be able to change for you) and older software (I believe, though am not 100% sure, that the Logix has not got flash memory and has ROM (read-only-memory) that cannot be upgraded by CD.
The Manhattan is in stock with the latest software and the latest hardware. I am not sure about availability of the Scan but it also has the latest software/hardware. Make your decision on price/availability/colour/front panel.
Regards,
Alex.